| Starter | Tm | Tier | Game |
|---|---|---|---|
| Hyun Jin Ryu | TOR | 6.13 | 202104200_TOR_BOS |
| Max Scherzer | WAS | 4.02 | 202104210_SLN_WAS |
| Walker Buehler | LAN | 2.85 | 202104220_SDN_LAN |
| Zac Gallen | ARI | 1.76 | 202104200_ARI_CIN |
| Zack Wheeler | PHI | 1.59 | 202104200_SFN_PHI |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Trevor Williams | CHN | -3.46 | 202104220_NYN_CHN |
| Matt Harvey | BAL | -3 | 202104200_BAL_MIA |
| Jeff Hoffman | CIN | -2.42 | 202104220_ARI_CIN |
| Mitch Keller | PIT | -2.31 | 202104220_PIT_DET |
| Jose Quintana | ANA | -1.6 | 202104210_TEX_ANA |
Based on accumulated WAA for this season up to 2021-04-22.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 2.02 | Corbin Burnes | 24.3 | MIL |
| +004+ | 1.84 | Tyler Glasnow | 24.7 | TBA |
| +005+ | 1.74 | Joe Musgrove | 26 | SDN |
| +007+ | 1.68 | Jacob deGrom | 20 | NYN |
| +008+ | 1.63 | Carlos Rodon | 19 | CHA |
| +010+ | 1.51 | Danny Duffy | 18 | KCA |
| +011+ | 1.5 | Marcus Stroman | 20.3 | NYN |
| +012+ | 1.49 | Lance Lynn | 19.7 | CHA |
| +015+ | 1.43 | John Means | 23.7 | BAL |
| +016+ | 1.39 | Max Scherzer | 25 | WAS |
| +018+ | 1.34 | Matt Boyd | 26.7 | DET |
| +019+ | 1.34 | Michael Pineda | 18 | MIN |
| XXXXX | 1.23 | Gerrit Cole | 24.7 | NYA |
| XXXXX | 1.19 | Dane Dunning | 15 | TEX |
| XXXXX | 1.19 | Ryan Weathers | 15.3 | SDN |
| XXXXX | 1.14 | Steven Matz | 18.3 | TOR |
| XXXXX | 1.11 | Aaron Nola | 24.7 | PHI |
| XXXXX | 1.09 | Shane Bieber | 29.3 | CLE |
| XXXXX | 1.08 | Trevor Rogers | 22 | MIA |
| XXXXX | 1.06 | Brandon Woodruff | 23 | MIL |
| XXXXX | 1.06 | Tyler Mahle | 20.7 | CIN |
| XXXXX | 1.04 | Walker Buehler | 25 | LAN |
| XXXXX | 1.03 | Johnny Cueto | 20 | SFN |
| XXXXX | 1.01 | Clayton Kershaw | 24.7 | LAN |
| XXXXX | 1 | Aaron Sanchez | 19.7 | SFN |
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